Introduction to Galvanic Cells & Voltaic Cells

Подписаться 8 млн

Просмотров 671 тыс.

50% 1

This chemistry video tutorial provides a basic introduction into electrochemical cells such as galvanic cells also known as voltaic cells. A galvanic cell is device such as a battery which converts chemical energy into electrical energy. A galvanic is made using two electrodes known as the anode and the cathode. Oxidation occurs at the anode and reduction occurs in the cathode. The electrons are written on the right of an oxidation half-reaction and they are located on the left side of a reduction half-reaction. Oxidation involves the loss of electrons and reduction is associated with the gain of electrons. Electrons always flow from the anode to the cathode. The purpose of the salt bridge is to prevent the build up of charge. Cations flow through the salt bridge toward the cathode and anions flow toward the anode. This electrochemistry explains completely how a galvanic cell works. It discusses how to write the overall reaction from the half reactions and how to represent the cell using standard line notation or cell notation. The electromotive force of a galvanic cell is measured in volts and 1 volt is 1 joule per coulomb. Voltage represents the work that can be done per coulomb of electric charge. Electric current is the rate at which electric charge is transferred. This video discusses how to increase the voltage and current delivered by a galvanic cell.
Intro to Galvanic & Voltaic Cells:
• Introduction to Galvan...
How To Draw Galvanic Cells:
• How To Draw Galvanic C...
Standard Reduction Potentials:
• Standard Reduction Pot...
Cell Potential Problems:
• Cell Potential Problem...
Cell Notation Problems:
• Cell Notation Practice...
___________________________________
Concentration Cells:
• Concentration Cells & ...
Cell Potential & Gibbs Free Energy:
• Cell Potential & Gibbs...
Cell Potential & Equilibrium K:
• Equilibrium Constant K...
Nernst Equation:
• Nernst Equation Explai...
Electrolysis of Water:
• Electrolysis of Water ...
_____________________________________
Electrolysis of Sodium Chloride:
• Electrolysis of Sodium...
Electrolysis & Electroplating Problems:
• Electrolysis & Electro...
Electrochemistry Practice Problems:
• Electrochemistry Pract...
SAT Chemistry Subject Test Review:
• SAT Chemistry Subject ...
Carbon -14 Dating:
• Carbon 14 Dating Probl...
Beer Lambert's Law:
• Beer Lambert's Law, Ab...
______________________________________
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections
Chemistry PDF Worksheets:
www.video-tutor.net/chemistry...

Опубликовано:

15 дек 2017

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 308

@TheOrganicChemistryTutor Год назад

Next Video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vLCf4_NKjGU.html Chemistry PDF Worksheets: www.video-tutor.net/chemistry-basic-introduction.html Final Exams and Video Playlists: www.video-tutor.net/

@ch1cubs2 5 лет назад

The organic Chemistry Tutor is the hero this world needs

@zuma5206 4 года назад

✅✅✅✅

@sandeep7973 3 года назад

Not the hero we need, but the hero we deserve

@edward3709 3 года назад

dude saved me from physics and chem. love him

@sesonagalada3217 3 года назад

He Batman.

@mohammedbasith4689 3 года назад

@@sandeep7973 not the hero we deserve, but the hero we need.

@shawnclifford 2 года назад

He has a soothing voice. He knows a lot of topics. He does it for virtually free. Thank you, sir.

@johnnybones5406 Год назад

he gets paid a shit ton from RU-vid sooo that's def his incentive

@seungseungminji Год назад

@@johnnybones5406 but he could sell these materials and make just as much or more. He deserves all the respect

@NoActuallyGo-KCUF-Yourself Год назад

TOCT has been a hero of mine for many years.

@TactlessGuy 11 месяцев назад

@@seungseungminji He does sell his lessons lol. His full lessons are 2 hour+ long. The videos he posts are appetizers in comparison. Still very useful and just enough to get through college, though.

@seungseungminji 11 месяцев назад

@@TactlessGuy I mean, it IS a business. My argument was, he does make money, which is okay. He could also not post these “appetizers”

@sabas6784 4 года назад

Yo, why is he so underrated? He has been saving lives since idk forever.

@alexandrederibaucourt7333 5 лет назад

Damn 15min of this video and understand more than i did after a full trimester of chemistry... thx👍

@mariaorsic9763 3 года назад

OC: You are so good! Please figure out a way to get heavily rewarded and further spread your incredible way of explaining things. YOU set the standard for teaching the sciences. No one is close!

@saido7969 2 года назад

Thank you for your excellent lessons. And hello everyone! wish you a good day. I'm from Iraq and I'm learning maths and chemistry from this channel. My English is not very good, but I can understand the important part of each lesson. Our schools are very bad as you might know and the Arabic and Kurdish content on RU-vid is poor in Science. So I have to come here sometimes. Love for everyone from Iraq-Sinjar mountain

@waynekottkamp8591 2 года назад

A salam alaikum

@spaceshipastro Год назад

iraqis are here

@n0limitmarz 3 месяца назад

@@waynekottkamp8591salamu alaikum wa rahmatullah akhi

@yale3087 Год назад

bro taught me more in 5 mins than my chemistry teacher has in months

@FREE.PALESTINE1948. Год назад

Me tooo😂

@legendvanderwaal3608 10 месяцев назад

😂

@adrianwabe5202 Год назад

I'm always amazed by how makes a topic so simple to understand.

@randaljamra1228 Год назад

your name amazing

@trfinl Год назад

In case someone hasn't already mentioned it, at 9:14 you mistakenly call the Zn 2+ an anion -- you correct yourself in the following discussion.

@seungseungminji Год назад

I was going crazy istg, thank you so much!!

@arnauldmartinez746 4 года назад

I owe you my children, this video helped me so much! Thank you!

@nyrellmartinez5572 3 года назад

Hi dad

@arnauldmartinez746 3 года назад

Nyrell Martinez Son, is the tutor treating you well? You haven’t sent a carrier pigeon in years

@remasalhawari8077 3 года назад

@@arnauldmartinez746 lol

@kalebdida 3 месяца назад

@@arnauldmartinez746 dad im grown up now leave me alone

@leahshuster3412 3 года назад

You are a literal genius. I am more grateful to you than you'll ever know. I owe you my deepest thanks!

@DarkMatterr 5 лет назад

I always use *Red Cat* to know that Reduction's at Cathode

@jackshayne1634 5 лет назад

You can use "an ox" as well!

@DarkMatterr 5 лет назад

@@jackshayne1634 yeah learned that a few days later lol

@strangeme8164 5 лет назад

That's nice. Now I'm not going to forget it .

@laura79613 4 года назад

Oooh thank you

@GM.Nobody 4 года назад

That only applies in galvanic cells right?

@staceyii7366 3 года назад

We need that explanation of the chemistry in The Whole Arab World so badly....!

@ZombieFaceClause 6 лет назад

i always watch the ads as a return in the favor lol

@Celinekho05 3 года назад

i dont know why this makes me laugh so hard

@crazychimp1039 3 года назад

@@Celinekho05 bland 😒

@miriamshuster6325 3 года назад

YES YES

@abhinavsrivastava7157 2 года назад

Simply watching ads wouldn't do.. click on the link in the ad, that's how you tubers earn.. they earn for every ad click

@ginarae3081 3 года назад

I know you get millions of "thank you's" from people all over but you are AMAZING! Thank you so much!

@iluhyuhswag 6 месяцев назад

I've been trying to learn electrochemistry for 6 months now. I thank God for you!!

@nathanbowman1383 2 года назад

Finals week anybody? I'm about to binge this man's videos for the next week.

@sgregory0753 2 года назад

This explained the galvanic cell better than my Chem teacher explaining it for an entire week

@Lightning_Dragon_ Год назад

Here's a tip from a fellow student to another, there is a good way to remember Oxidation = anode and Reduction = cathode. Using the phrase "an ox cared" You can know an=anode ox=oxidation and cared = ca and red which both respectively means cathode and reduction

@mosespumpuni2631 11 месяцев назад

Some books' got anode as positive and cathode as negative... it's so confusing 😕

@Lightning_Dragon_ 11 месяцев назад

@@mosespumpuni2631I think you might be getting it confused. Theres also a thing where electrons (negative charge) flow to cathode and positive charge flow to anode, which makes sense because anode is negative which attracts positive and vice versa. But the charge of the anode itself is always negative and cathode positive. Hope this helps.

@rjhick1 9 месяцев назад

@@mosespumpuni2631 That depends on the cell. Galvanic Cells Anodes are negatiive and positive cathodes. For electrolytic cells is flipped. The anodes are positive and cathodes are negatives. Still regardless dont pay attention to that. Oxidation happens at anodes, and reduction happens at cathodes regardless of its the cell is galvanic or electrolytic. Thats the part to remember

@rjhick1 9 месяцев назад

Thats good. Another good one is Red Cat. Reduction happens at cathode.

@Rumorthewitch 15 дней назад

been staring at my chemistry book confused for days, watched the first ten minuted of this video and understood. thanks man, wonder how many people would fail chemistry without you.

@lexiszeua9241 2 года назад

Today we were doing electrolysis and i asked my chem teacher about this and they said that it wasn't in the syllabus and that if they explained it it would just complicate the learning of the chapter. Thanks for nourishing my curiosity✨

@funwithme403 2 года назад

You are honestly amazing, u teach me more in a whole day of ur videos than my chemistry teacher does in 9 months

@nooralemadi8950 4 года назад

I don't know how to thank you 🙏, I am so happy while watching your videos , since I am studying in easy way . and the way you explain. is understandable .THANKX💛

@dlore2000 4 года назад

You're single handedly destroying Khan Academy, my friend. This is not a contest or anything. The more the merrier ... but you are the DEAN on on-line learning!! (Prof. Dave is a close 2nd).

@juliam2070 4 месяца назад

you are such a king, hope you have a wonderful day because you deserve it 🙏💗

@angelarosz8289 3 года назад

Thank you so much. You makes things so easy to understand and you cover everything. There's an explanation for everything that happens.

@shravjally4896 4 года назад

Sir, I thank you to the ends and back, I refer to your videos right after classes and usually before them, these free lectures of yours meal my noggin better than the lectures given by IIT teachers whom i pay for. 😶 un believable. Hats off sire!

@nginasimzee431 Год назад

I'm Soo greatest to see your videos especially in chemistry,, ur explain things practically...thank you

@timothybulaya2890 2 года назад

If we can clap for the NHS then we can clap for this man..both are saving lives👏🏾

@danieloconnell7097 Год назад

You should run for president in 2024 dude. You're an absolute hero.

@user-zx6uy9jq4o 11 месяцев назад

I don't know whether my teacher is making it complicated or you are making it simple.

@ashg.2066 2 года назад

what you don't know is the word I don't Know... What don't you know?? Simply you are phenomenal....

@Thatsciencedude324 2 года назад

This god of a human being helped me with Chem 12 and now for MCAT. Without him I would've been doomed

@hamidqazi7021 Год назад

Its really amazing. I really liked your style of teaching. Please keep making the harder stuff easy for the beginners like us.

@ri_shu26 4 месяца назад

once again, you have save my life.

@eze1022 6 лет назад

You teach everything wish I paid you vices my professors. Lol

@KDOERAK 11 месяцев назад

I am impressed: this is a very good video - clear and well told.👍👍

@miriamshuster6325 3 года назад

Thank Gd for you!!!! You are the reason I get A's in chem

@markle3303 5 месяцев назад

Even my experienced chemistry teacher used this video for his lesson, you deserve RESPECT!

@ddane6144 2 месяца назад

I would’ve totally failed in ap chem if I had not known you sir sending u so much respect

@GotYourWallet 2 года назад

Do the electrons travel only through the wire or will a small amount travel through the salt bridge? Edit: I just found the answer on stack exchange. A small amount of current will leak through the electrolyte. To counter this modern batteries have a membrane called a separator that allows ion exchange but has a much higher resistance to combat the flow of electrons.

@intuitivecontrolsystem4436 3 года назад

Why nobody discusses the salt bridge in detail.

@gcinabantungozi8723 11 месяцев назад

Dwift did

@linddddd 9 месяцев назад

It’s used to prevent the mixing of the half reactions and balancing them out :)

@the_crackin3610 9 месяцев назад

To retain charge balance

@mattheq9930 7 месяцев назад

@@lindddddactually its to retain the electron flow of the voltaic cell

@AlexIsPsychotic 6 месяцев назад

@@mattheq9930that's the same thing

@aroraptor7550 Год назад

Very good explanation! Thank you very much

@RogerRumbu 7 месяцев назад

Well presented - Thank you

@selamawitgebrewold4351 2 года назад

thanks for the brief lesson

@legendvanderwaal3608 10 месяцев назад

He also has a soothing voice😊

@Somalidoc321 6 лет назад

I love you!!! thank youuuuu for your time and dedication.

@AmessaluAGelaw 2 года назад

You are the smartest person to explain it in a simple way,,, you are the real academician bravo

@Dhikr 3 года назад

He deserves a teaching award

@legendvanderwaal3608 10 месяцев назад

He deserves a nobel prize award...he's been saving students life since ages🎉...dude's a legend💥

@L0ttery_ 4 года назад

I owe this video so much

@judyamr7663 7 месяцев назад

perfect explanation ❤️

@egbujorandrew Год назад

Thanks for this It helped a lot 👍

@wilsonmapesa798 5 лет назад

My best tutor

@XTheXRizzaX 6 лет назад

I wish this video came out sooner. Just had my final a couple days ago. Regardless, great video mate

@erilove1 6 лет назад

Rizza same

@Nby-DIH Месяц назад

Thanks a lot, and have a great day every day!!

@JayJay-ki4mi 6 дней назад

Here because I'm building earth batteries. Needed to recap on stuff I learned and forgot 20 years ago. The salt bridge isn't required in an earth battery because the soil does the same job :) Thank you.

@lexielliott3063 3 года назад

I owe this guy my life

@bushranaseer2865 2 года назад

You are the best chemistry sir ever 😜

@tayyubahmed1646 4 года назад

Thanks a lot man❤

@altayebofficial 3 года назад

جزاك الله خيرا

@kanishknarra1386 3 месяца назад

Very good explanation.

@admissionuniversity5753 4 года назад

No word for you are incredible

@nigarsultana9882 4 года назад

You don't animate much but man You're better than Crash Course :)

@cavietapersaud403 3 года назад

Thank u so much my superhuman friend

@jeremiahpua94 3 года назад

I can tell how successful this guy is by having to watch all these ads!

@shahlalkhan1916 Год назад

very nice,and clear concepts of the teacher. it's easily understandable to a commomn and verage minded person. This is greatest success of a good teacher Hope to receive such type of lectures. S Sir please explain cathodic , ICC protection of Marine ships to protect submesed part of the ships like Hull, Rudder, propeller, shaft ofthe main propelling engine,

@michael42158 2 года назад

It is the ions from the salt bridge which flow into the two 1/2 cells to maintain electroneutrality.

@laura79613 4 года назад

Concerning the salt bridge, if the zinc ions flow to the cathode side, will the copper electrode now get coated by zinc metal?

@jaceduhon3118 3 года назад

No. The zinc ions will combine with the sulfate ions from the copper side and form a salt

@gihanvimukthi8774 3 года назад

Thanx bro love you ❤️❤️❤️

@Keato20 2 года назад

I just have one question. Hypothetically, if we had a Mg and Zn simple cell (one beaker) in a dilute acid, would the electrons on Mg go to Zinc or would the Mg react and reduce the H+ ions in the acid instead. I am presuming Mg would directly reduce H+ because Zinc is more reactive than Hydrogen. Also there is a bigger difference in reactivity between H+ and Mg too. ???????

@cabdisalaanaden3447 2 года назад

thanks you very much teacher from somalia

@user-xc6op6lv1y Год назад

easy to understand👍

@WastedElephant 2 года назад

So how do you build the salt bridge? And how do you stop the electrons from flowing through it instead of through your load?

@user-fc9bg6ns1g 6 месяцев назад

you are a legend sir

@user-ou5vd7wr6c 13 дней назад

this guy keeps saving me 😇

@lorokenyi8688 3 года назад

Deserve my subscription

@kelvin1518 4 года назад

hello,is this how the lead acid battery terminals named or does it mean ,cathode is the positive terminal of a lead acid battery and the anode is the negative terminal? or does it mean anode is the positive terminal of the battery and the cathode is the negative terminal of the battery?

@LowkeyySaad Год назад

Thanks sir ❗️♥️

@user-xb4xe3lc5g 7 месяцев назад

You are the man❤

@stephenhatcher1103 3 года назад

you just saved my life

@raymondyang3097 4 года назад

you are legit better than my teacher

@arialshaine7043 2 года назад

Thank you so much

@NoName-kt4ws Год назад

to remeamber it just use "AN-OX" and "CA-R"

@legendvanderwaal3608 10 месяцев назад

This man be good❤💥😎

@eddiek8950 Год назад

Legend of all seasons 🇿🇲😹 ZAMBIANS love you sir.

@aartimeetsworld8538 4 года назад

At 12:11 the Electrode Potential for the Oxidation of Zn should be -0.76 V not +0.76V (Oxidation electrode potential is always more negative than that of the Reduction half cell)

@legendvanderwaal3608 10 месяцев назад

He is using the reverse form of the equation.....you're talking about reduction potential but the reaction/equation is an oxidation reaction...please do you get it??

@marthadiabla2062 3 года назад

Wow thanks so much

@itzshortclipz8016 4 года назад

excuse me i’d like to make a correction at 9:13 aren’t cations positively charged ions? think, ca+ion (plus for positive).

@blomblorpf 4 года назад

He did say it wrong, but then a few seconds later correctly again.

@HusaynTechOfficialChannel 2 года назад

Thank you 😊

@aliahmad32551 Месяц назад

Thank youuuuuuuuuuu!

@AokijiKuzan8 Год назад

Finally getting the hang of this topic 😸😂 thanks to JG

@userr_aa 3 года назад

you should be blamed for making me fallen in love with chemistry. Now, how can I break up.

@user-me2qd4bl3f Год назад

Great ❤️

@franc1159 4 года назад

Doesnt voltage travel from positive to negative?

@arpitkumarsahoo4172 Год назад

I dont get the electric potential part 10:50 . If the zn soln has a potential 0.76 and cu soln has a potential of 0.34, then shouldn't the potential difference be the total voltage rather than adding it ? The vid made everything very clear. thanks for that